The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi

A partial cranial endocast and right inner ear of the Cretaceous abelisaurid dinosaur Aucasaurus garridoi were digitally reconstructed from CT scans. The forebrain, midbrain, and hindbrain resemble the morphology described for the abelisaurids Majungasaurus and Indosaurus. However, Aucasaurus exhibits a floccular process that is relatively larger than that of Majungasaurus. In Aucasaurus the flocculus is enclosed in an 8-shaped floccular recess, similar in shape and size to that observed in Abelisaurus, suggesting that the two Patagonian taxa were capable of a slightly wider range of movements of the head. Here we describe the second inner ear known for the Abelisauridae. The labyrinth of the inner ear is similar in shape and size to the semicircular canals of Majungasaurus, although the lateral semicircular canal is shorter in Aucasaurus.Fil: Paulina Carabajal, Ariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo ; ArgentinaFil: Succar, Cecilia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo ; Argentin

The usefulness of what seems useless. Project-designs for a bird house, a kite and a game.

L’esperienza dei workshop diventa occasione per frequentare l’argomento dell’utilità dell’apparentemente inutile: Cosa si ottiene affrontando i problemi del progetto di una casa per un uccello, un aquilone o un gioco? Si avvia un’indagine sulle tecniche del progetto e sulla sua rappresentazione, con l'obiettivo di approfondire gli aspetti essenziali del lavoro dell'architetto: come si inizia, come avviene il processo di ideazione, il modo di documentarsi, il tema della scala, il ruolo della struttura, i materiali, gli elementi naturali e le componenti ambientali specifiche di un luogo. Questi esercizi sono il luogo della collezione dei materiali per una enciclopedia non scrivibile dell'ispirazione, dell'immaginazione o addirittura delle decisioni felici delle quali parlano.The workshop experience becomes an occasion to address the theme of the usefulness of what seems useless: What is obtained in dealing with the design issues of building a bird house, a kite or a game? An investigation is set forth regarding the techniques of a project-design and its representation, with the objective of enhancing one’s knowledge about the essential aspects of the architect’s work: how to begin, how is the process of design developed, how and what information is to be obtained, the issue of scale, the role of structure, materials, the natural elements, and the environmental components that are specific to a place. These exercises become the place for a collection of materials that can make up an un-writable encyclopedia of inspired knowledge, imagination, and even the satisfactory decisions in the true story they tell

Neuroanatomy of titanosaurid dinosaurs from the Upper Cretaceous of Patagonia, with comments on endocranial varibility within Sauropoda

The purpose of this study is to provide a detailed description of the neuroanatomy of Bonatitan, Antarctosaurus, and an unnamed titanosaur from Río Negro, Argentina including the first observations on the inner ear of the two first taxa using CT scans. The materials were compared with previously described sauropod endocasts and other less complete titanosaur braincases from Argentina. The cranial endocasts show the general morphology of other sauropods being bulbous, anteroposteriorly short and transversely wide, and with enlarged and posteroventrally projected pituitary body. Particular titanosaur traits are the extremely short and horizontal olfactory tract, the absence of a floccular process and a single root for cranial nerve XII. In addition, in the basicranium the abducens nerve (CN VI) does not penetrates the pituitary fossa and the internal carotid artery enters the medial aspect of the basipterygoid process, resulting in an external opening for this vessel that is not visible in lateral view of the braincase. The titanosaurid inner ear also exhibits particular traits, such as robust semicircular canals, and anterior and posterior semicircular canals that are subequal in size. The variation observed in the sauropod endocranium indicates an evolutionary tendency in titanosaurs toward the anteroposterior shortening of the midbrain, and the reduction in size of the semicircular canals of the inner ear, in particular the anterior semicircular canal. This, together with the lack of floccular process suggests a narrower range of movements of the head for this clade.Fil: Paulina Carabajal, Ariana. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia; Argentin

Conocimientos que posee el personal de enfermería sobre cuidados de pacientes diabéticos

El presente estudio de investigación fue realizado en el Hospital San Luis de la provincia de San Luis, servicio de clínica médica de hombres y en el Hospital Privado de la provincia de San Juan, servicio de terapia intensiva, en el periodo comprendido entre julio a septiembre del año 2014. Los sujetos de estudio fueron el personal de enfermería, en sus tres niveles: Licenciados/as, enfermeros/as universitarios/as, y auxiliares. El objetivo fue medir el grado de conocimientos de los enfermeros en estudio sobre cuidados específicos de pacientes diabéticos y limitantes para su aplicación. Además de comparar los conocimientos de los enfermeros de las instituciones ya mencionadas sobre la atención a dichos pacientes.Fil: Carabajal, Dibe. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería..Fil: Valdez, Eliana. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería.

Filogenia e revisão de Camirus Stål, 1862 (Hemiptera: Scutelleridae: Pachycorinae)

Camirus Stål, 1862 compreende atualmente seis espécies, de distribuição Neártica e Neotropical. Há pouca informação na literatura, sendo desconhecida a morfologia genital de todas as espécies. Neste trabalho as relações evolutivas de Camirus foram investigadas através da metodologia cladística. Foram utilizados cento e dezessete caracteres discretos, abrangendo morfologia geral, sistema eferente odorífero externo e genitália de macho e fêmea. Como grupo externo foram selecionados outros gêneros de Pachycorinae e Odontotarsinae com base em três critérios: [I] hipótese prévia de relacionamento, [II] morfologia geral e [III] histórico taxonômico compartilhado. Por ser uma das espécies que compõe o único gênero de Scutellerinae na região Neotropical, Augocoris gomesii foi utilizado para o enraizamento. A monofilia de Camirus não foi recuperada, bem como Pachycorinae não-monofilética. Assim, Camirus é revisado taxonomicamente com a descrição de genitália de macho e fêmea e são propostos dois novos gêneros, Egerius gen. n. e Mirusca gen. n., bem como uma nova sinonímia. Uma chave de identificação para as espécies é fornecida.Camirus Stål, 1862 currently comprises six species, of Nearctic and Neotropical distribution. There is little information in the literature, and the genital morphology of all species is unknown. In this work the evolutive relations of Camirus were investigated using cladistic methodology. One hundred and seventeen discrete characters were used, covering general morphology, external scent efferent system, male and female genitalia. As an outgroup, other genera of Pachycorinae and Odontotarsinae were selected based on three criteria: [I] previous relationship hypothesis, [II] general morphology and [III] shared taxonomic history. As one of the species comprising the only Scutellerinae genus in the Neotropical region, Augocoris gomesii was used for rooting. Camirus monophyly has not been recovered, as well as non- monophyletic Pachyocorinae. Thus, Camirus is revised with the description of male and female genitalia and two new genera, Egerius gen. n. and Mirusca gen. n. are proposed, as well as a new synonymy. A key to the species is provided

A new peirosaurid (Crocodyliformes, mesoeucrocodylia) from the Upper Cretaceous of Patagonia, Argentina

Fil: Barrios, Francisco. Museo Municipal Carmen Funes. Plaza Huincul. Neuquén; ArgentinaFil: Paulina-Carabajal, Ariana. Museo Municipal Carmen Funes. Plaza Huincul. Neuquén; ArgentinaFil: Bona, Paula. División Paleontología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; Argentin

A New Specimen of Autroraptor cabazai Novas, Pol. Canale, Porfiri and Calvo, 2008 (Dinosauria, Theropoda, Unenlagiidae) from the Latest Cretaceous (Maastrichtian) of Río Negro, Argentina

There were considerable differences in Late Cretaceous faunas of the Northern and Southern Hemispheres, although the differences were breaking down during Campanian and Maastrichtian times with the appearance of hadrosaurids in Antarctica and South America, and titanosaurids in North America. However, theropods continued to be separated into northern and southern faunas until paravians were discovered in the Southern Hemisphere (Novas and Puerta, 1997; Forster et al. 1998; Calvo et al. 2004; Makovicky et al. 2005; Novas and Pol, 2005; Novas et al. 2008). During the 2008 field season, a joint expedition to the Bajo de Santa Rosa (Río Negro, Argentina) recovered a second, slightly smaller specimen of Austroraptor cabazai Novas, Pol, Canale, Porfiri and Calvo, 2008 (Novas et al. 2008; Paulina Carabajal et al., 2009). The specimen was identified on the basis of the morphology of the humerus, metatarsal III and pedal phalanx IV-2 (originally identified as IV-1 in the holotype, MML 195). Although the skeleton is incomplete, it preserves bones (radius, ulna, and elements of the metacarpus, metatarsus and pes) that were not recovered with the holotype of this large dromaeosaurid. The description of this second specimen is intended to complement the description of the holotype (Novas et al., 2008), adding information about the limb morphology, particularly the forelimb and foot of this dinosaur.Fil: Currie, Philip J.. University of Alberta; CanadáFil: Paulina Carabajal, Ariana. Provincia del Neuquen. Municipalidad de Plaza Huincul. Museo "carmen Funes"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Re-description of the braincase of the rebbachisaurid sauropod limaysaurus tessonei and novel endocranial information based on CT scans

CT scans of the type braincase of Limaysaurus tessonei (MUCPv-205) allowed the first study of the endocranial cavities (brain and inner ear) for this South American taxon. Comparisons of the cranial endocast of L. tessonei with other sauropods indicate that 1) South American rebbachisaurids are more similar to each other than to Nigersaurus, and 2) certain association of traits are present in all known rebbachisaurid cranial endocasts, such as lack of an enlarged dorsal expansion, poorly laterally projected cerebral hemispheres, presence of a small flocculus of the cerebellum, markedly long passage for the facial nerve (CN VII), markedly inclined pituitary, and presence of a passage for the basilar artery communicating the floor of the endocranial cavity and the pituitary fossa. The relatively enlarged olfactory region indicates that smell was an important sense for this group of dinosaurs, suggesting different olfactory capabilities when compared to coeval titanosaurs.Fil: Paulina Carabajal, Ariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Calvo, Jorge Orlando. Universidad Nacional del Comahue. Centro Paleontológico Lago Barreales; Argentina. Universidad Nacional del Comahue. Museo de Geología y Paleontología; Argentin

Imágenes y frases que atrapan

El objetivo de esta colección es favorecer el aprendizaje en las áreas de Matemáticas, Lengua, Ciencias Sociales y Ciencias Naturales. Los materiales fueron ilustrados por artistas de primer nivel como Rep, Istvansch, Isol, Claudia Legnazzi, Bianki y Bernasconi